Monthly Report October, 2012 – Public Works Department

WATER – A total of 31,963,600 gallons of water were produced, 18,924,000 at Alder Creek Treatment Plant and 13,039,000 at Brownell Springs. Peak day water production was 1.29 MG on the 3rd. A total of 13.12 inches of rainfall were recorded at the treatment plant site during October. A power surge on October 23rd affected some sensitive electronic equipment used to measure and monitor particle concentration in the water. Repair parts are no longer available for these items so we had to purchase a new streaming current monitor however CH2M-Hill was able to find a replacement turbidimeter at their Lebanon project. City crews extended the 6″ water main in Sunset St. to provide service to a new parcel in the Mt. Hood Industrial Park. The developer of the site failed to complete these improvements and the City collected funds held in escrow to pay for this work.

SEWER – A total of 50,660,000 gallons of wastewater were treated and reused for irrigation purposes. Minimum flow was 0.83 MGD on the 18th. Maximum day flow was 0.95 MGD on the 29th. 11.21 inches of rainfall was recorded at the treatment plant site during the month. We were in compliance with our waste discharge permit for the month of October. BOD concentration was 4.8 mg/l; BOD loading was 65 lbs.; permit allows 10 mg/l and 83 lbs.; SS concentration was 6.0  mg/l; SS loading was 81.2 lbs.; permit allows 10 mg/l and 83 lbs.126,938 gallons of liquid sludge were pressed into 9.9 dry tons of sludge which was hauled and spread on local pastureland approved by DEQ for this use. The Northside Pump Station Upgrade project was completed. Variable speed drives were installed on the existing pumps to accommodate the increased sewage flow from the new Sandy High School. The pumps at Marcy St.; Northside, Southeast and Meinig Ave. lift stations ran a total of 256 hours with no significant problems.

STREETS – The street sweeping contractor spent 49 hours sweeping streets and collected 17 tons (23 cu. yds.) of debris, covering 142 lane miles. 

 PARKS / OTHER –  Decorative boulders were installed in the Parkway subdivision detention pond in Meinig Park. This will help reduce the velocity of the water entering the facility and reduce erosion. We purchased wetland plants for placement in the pond by volunteers over the winter. Landscaping and decorative boulders were installed in the planter strips and islands in the parking lot at Meinig Park. The grass area at the bottom of the slope below the play structure was regraded and reseeded to improve drainage.